KR100814830B1 - Plasma display device and driving method thereof - Google Patents

Abstract

A plasma display device and a driving method thereof are provided to suppress a low-discharge or an erroneous discharge during an address period by compensating for an erroneous alignment between X and Y electrodes. A plasma display device includes a PDP(Plasma Display Panel)(100), a first electrode driver(400), and a controller(200). The PDP includes plural first to third electrodes. Discharge cells are formed at intersections among the first to third electrodes. The discharge cells have electrode structures which are different from one another. The PDP has a closed-type barrier rib structure. The first electrode driver sequentially applies scan pulses to the first electrodes. The first electrode driver applies the scan pulse with a first width to odd-numbered first electrodes and the scan pulse with a second width to even-numbered first electrodes. The controller determines the first and second widths according to sizes of the odd-numbered and even-numbered first electrodes in the discharge cells.

Description

Plasma display device and driving method thereof {PLASMA DISPLAY DEVICE AND DRIVING METHOD THEREOF}

1 is a schematic diagram of a plasma display device according to an exemplary embodiment of the present invention.

2 is a structural diagram of a plasma display panel according to a first embodiment of the present invention.

3 is a structural diagram of a plasma display panel according to a second exemplary embodiment of the present invention.

4 is a view showing a closed bulkhead structure according to the first embodiment of the present invention.

5 is a view showing a closed partition wall structure according to a second embodiment of the present invention.

6 is a view showing a closed partition wall structure according to a third embodiment of the present invention.

7 is a diagram illustrating an area of a sustain electrode and a scan electrode in a plasma display panel with no alignment error.

8 is a diagram illustrating an area of a sustain electrode and a scan electrode in a plasma display panel in which an alignment error occurs.

9 is an electrode structure diagram of two adjacent discharge cells in a plasma display panel in which an alignment error occurs.

10 is a driving waveform diagram illustrating a method of driving a plasma display device according to a first embodiment of the present invention.

11 is a driving waveform diagram illustrating a method of driving a plasma display device according to a second embodiment of the present invention.

The present invention relates to a plasma display device and a driving method thereof.

The plasma display device is a flat display device that displays characters or images by using plasma generated by gas discharge. The plasma display device has a high luminance, high luminous efficiency, and a wide viewing angle, compared to other display devices. Due to these advantages, the plasma display device is in the spotlight as a display device to replace a conventional cathode ray tube (CRT) in a large display device of 40 inches or more.

In general, a plasma display panel of a plasma display device includes a plurality of address electrodes (hereinafter referred to as “A electrodes”) extending in a column direction, and a pair of orthogonal to the plurality of A electrodes and extending in pairs in a row direction. A plurality of sustain electrodes (hereinafter referred to as "X electrodes") and a plurality of scan electrodes (hereinafter referred to as "Y electrodes") are included. The structure in which the X electrodes and the Y electrodes are sequentially arranged in the column direction is referred to as "XYXY arrangement structure". Here, the space formed by the A electrode, the X electrode, and the Y electrode becomes one discharge cell.

In the plasma display device, the resolution is determined according to the number of discharge cells formed in the plasma display panel. Recently, plasma display panels are being developed in such a manner that resolution is very high, that is, high definition is achieved.

In order to achieve high definition, the size of the discharge cells formed in the plasma display panel should be reduced to increase the number of discharge cells. However, as the number of discharge cells increases, the overall capacitance increases, and as the size of the discharge cells decreases, the discharge efficiency decreases.

Therefore, in order to solve the increase in capacitance due to the high definition, a new XY array structure in which the XYXY structure is modified has been developed and used, and in order to compensate for the discharge efficiency, the phosphor cell partition structure is a closed partition structure to apply phosphors. It is expanding the area. The closed barrier rib structure is a structure in which neighboring discharge cells are partitioned into barrier ribs, and specifically, one discharge cell is surrounded by barrier ribs.

However, among the new XY array structures, a plasma display panel (hereinafter referred to as a "controlled plasma display panel") having a different electrode structure (i.e., an arrangement structure of an X electrode and a Y electrode) between adjacent discharge cells and having a closed partition structure is referred to as an X electrode. And when an alignment error with respect to the Y electrode occurs, the area of the Y electrode of the discharge cell in one of the even lines and the odd line becomes smaller than the area of the Y electrode of the discharge cell in the other line. .

Therefore, when the same scan pulse is applied in the address period, normal address discharge occurs in discharge cells having a large area of the Y electrode, but low discharge or false discharge occurs in discharge cells having a small area of the Y electrode.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide a plasma display device and a driving method thereof in which low discharge or false discharge does not occur in an address period in response to a controlled plasma display panel having an alignment spread (error).

According to one feature for achieving the above object, a plurality of first electrodes and second electrodes, including a third electrode formed to cross the first electrode and the second electrode, the first electrode, the second electrode and A driving method of a plasma display device is provided, wherein a discharge cell is formed at an intersection point of a third electrode, a control plasma display panel having different electrode structures between adjacent discharge cells in a column direction, and having a closed partition structure. In the method of driving the plasma display device, when the controlled plasma display panel has an alignment error between the first electrode and the second electrode, the scan pulse having the first width in the address period of the subfield is the first odd-numbered number. Applying to an electrode; And applying a scan pulse having a second width different from the first width to the even-numbered first electrode.

According to one feature for achieving the above object, a plurality of first electrodes and second electrodes, including a third electrode formed to cross the first electrode and the second electrode, the first electrode, the second electrode and The discharge cell is formed at the intersection of the third electrode, the electrode structure is different between the discharge cells neighboring in the column direction, has a closed partition structure, and a controlled plasma having an alignment error between the first electrode and the second electrode. Display panel; A controller for driving one frame into a plurality of subfields each including a reset period, an address period, and a sustain period; And a first electrode driver configured to generate a scan pulse and apply the scan pulse to the plurality of first electrodes under the control of the controller, wherein the first electrode driver includes a scan having a first width among the scan pulses. A pulse is applied to the odd first electrode, and a scan pulse having a second width different from the first width is applied to the even first electrode.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention. Like parts are designated by like reference numerals throughout the specification.

A plasma display device and a driving method thereof according to an exemplary embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

1 is a schematic diagram of a plasma display device according to an exemplary embodiment of the present invention. As shown in FIG. 1, a plasma display device according to an exemplary embodiment of the present invention may include a controlled plasma display panel 100, a controller 200, an address driver 300, a scan electrode driver 400, and a sustain electrode driver 500. ).

The controlled plasma display panel 100 includes a plurality of A electrodes extending in a column direction, and a plurality of X electrodes and Y electrodes extending in a row direction. The X electrode is formed corresponding to each Y electrode, and generally one end thereof is connected in common to each other. The discharge space at the intersection of the A electrode, the X electrode, and the Y electrode forms a discharge cell, and each discharge cell has a closed partition structure partitioned by a neighboring discharge cell and a partition wall. It has a different electrode structure. Each electrode array structure and the structure of the discharge cell of the controlled plasma display panel will be described in detail below.

The controller 200 displays a gray level by dividing a frame into a plurality of subfields having a weight. To this end, the controller 200 receives an image signal from the outside and outputs an address driving control signal, a sustain electrode driving control signal, and a scan electrode driving control signal. In this case, the controller 200 controls the scan electrode driving to set the scan pulses applied to the plurality of Y electrodes in the address period to be set normal pulses when there is no alignment error in the arrangement of the X electrode and the Y electrode of the controlled plasma display panel 100. Output the signal. On the other hand, if there is an alignment error in the arrangement of the X electrode and the Y electrode of the control plasma display panel 100, the controller 200 may determine the scan pulses of even or odd lines among the scan pulses applied to the plurality of Y electrodes in the address period. A scan electrode drive control signal whose width is larger than the width of the normal scan pulse is output.

The address driver 300 receives an address driving control signal from the controller 200 and applies a display data signal for selecting a discharge cell to be displayed to each A electrode.

The scan electrode driver 400 generates a driving waveform according to the scan electrode driving control signal received from the controller 200 and applies it to the Y electrode. In this case, the scan electrode driver 400 increases the width of the scan pulse applied to one of the odd lines and the even lines in the case of a controlled plasma display panel having an alignment error.

The sustain electrode driver 500 generates a driving waveform according to the sustain electrode driving control signal received from the controller 200 and applies the driving waveform to the X electrode.

The control plasma display panel of the plasma display device to which the present invention is applied will now be described with reference to FIGS. 2 and 6.

As described above, the controlled plasma display panel has a heterogeneous array structure in which the electrode structures of neighboring discharge cells are different, and the barrier rib structure of the discharge cell is a closed barrier rib structure.

First, an example of a heterogeneous array structure will be described with reference to FIGS. 2 and 3.

2 is a structural diagram of a plasma display panel according to a first embodiment of the present invention. In the control plasma display panel shown in FIG. 2, a plurality of address electrodes A1, A2,..., Am are formed in the column direction. And two X electrodes X1 and X2 pairing one Y electrode Y1 formed at the top of the panel and one Y electrode Y8 formed at the bottom and two Y electrodes forming another pair ( Y1, Y2) are alternately arranged. In general, the arrangement structure of the X electrode and the Y electrode shown in FIG. 2 is referred to as an "XXYY arrangement structure".

In this XXYY structure, one discharge cell 18 is formed at the intersection of the Y electrode, the X electrode and one A electrode.

In FIG. 2, only two neighboring discharge cells 18 are denoted by reference numerals in order to compare structures of neighboring discharge cells. Looking at two neighboring discharge cells 18, the discharge cell 18 on the upper side is positioned with the Y electrode at the top and the X electrode at the bottom. On the other hand, in the discharge cell 18 on the lower side, the X electrode is positioned above and the Y electrode is positioned below. That is, two neighboring discharge cells have different structures.

3 illustrates another example of a structure of neighboring discharge cells. 3 is a structural diagram of a plasma display panel according to a second exemplary embodiment of the present invention. In the controlled plasma display panel illustrated in FIG. 3, a plurality of address electrodes A1, A2,..., Am are formed in the column direction. In addition, two Y electrodes Y1 and Y2 paired with one X electrode X1 are alternately interposed between one Y electrode Y1 formed at the top of the panel and one Y electrode Y8 formed at the bottom. Are arranged. In general, the arrangement structure of the X electrode and the Y electrode shown in FIG. 3 is referred to as an "XYY arrangement structure".

In this electrode structure, one discharge cell 18 is formed at the intersection of the Y electrode, the X electrode and the A electrode.

In FIG. 3, only two neighboring discharge cells 18 are denoted by reference numerals in order to prepare structures of neighboring discharge cells. Looking at two neighboring discharge cells 18, the discharge cell 18 on the upper side is positioned with the Y electrode at the top and the X electrode at the bottom. On the other hand, in the discharge cell 18 on the lower side, the X electrode is positioned above and the Y electrode is positioned below. That is, two neighboring discharge cells have different electrode structures.

Next, an example of the closed partition structure will be described with reference to FIGS. 4 to 6.

4 is a view showing a closed partition structure according to a first embodiment of the present invention, which is a closed partition structure in an XXYY arrangement, which is one of heterogeneous arrangements.

As shown in FIG. 4, the partition wall 12 includes a first partition member 12a formed in a row direction and a second partition member 12b formed in a column direction. At this time, one first partition member 12a is formed to partition between discharge cells neighboring in the column direction, and one second partition member 12b is formed to partition between neighboring discharge cells in the row direction.

Thus, each discharge cell 18R, 18G, 18B is partitioned with respect to all neighboring discharge cells by one first partition member 12a and one second partition member 12b. In the discharge cell partitioned by the partition wall, a phosphor layer emitting color visible light is formed. The phosphor layer divides the discharge cells into red discharge cells 18R, green discharge cells 18G, and blue discharge cells 18B according to the color of light emitted. The discharge cells 18R, 18G, and 18B in which the phosphor layer is formed are filled with a mixed discharge gas such as neon and xenon.

The two X electrodes X1 and X2 and the Y electrodes Y2 and Y3 arranged in pairs are arranged in alignment with one first partition member 12a according to the XXYY arrangement structure. The X and Y electrodes arranged in this manner are formed by a combination of bus electrodes (not shown) and transparent electrodes 10 and 11. In this case, the transparent electrodes 10 and 11 of the X electrode and the Y electrode are formed to protrude toward the opposite electrode.

Next, another example of the closed partition structure will be described with reference to FIG. 5. 5 is a view showing a closed partition wall structure according to a second embodiment of the present invention.

As shown in FIG. 5, the partition 12 ′ includes a first partition member 12a ′ formed in a row direction and a second partition member 12 b ′ formed in a column direction. At this time, two first partition members 12a 'are formed in pairs so as to not share adjacent discharge cells in a column direction, and two first partition members are formed to be spaced apart from each other.

Therefore, two first partition members 12a 'partition between discharge cells in the adjacent column direction, and one second partition member 12b' partitions adjacent discharge cells in the row direction. Therefore, each discharge cell 18R, 18G, 18B is partitioned with respect to all the discharge cells neighboring by the 1st partition member 12a and the 2nd partition member 12b '.

In the discharge cell partitioned by the partition wall, a phosphor layer emitting color visible light is formed. The phosphor layer divides the discharge cells into red discharge cells 18R, green discharge cells 18G, and blue discharge cells 18B according to the color of light emitted. The discharge cells 18R, 18G, and 18B in which the phosphor layer is formed are filled with a mixed discharge gas such as neon and xenon.

The two X electrodes X1 and X2 and the Y electrodes Y2 and Y3 arranged in pairs are arranged in alignment with each other in the pair of first partition wall members 12a 'according to the XXYY array structure. The X and Y electrodes arranged in this manner are formed by a combination of bus electrodes (not shown) and transparent electrodes 10 and 11. In this case, the transparent electrodes 10 and 11 of the X electrode and the Y electrode are formed to protrude toward the opposite electrode.

Finally, another example of the closed bulkhead structure will be described with reference to FIG. 6. 6 is a view showing a closed partition wall structure according to a third embodiment of the present invention.

The closed barrier rib structure shown in FIG. 6 forms a hexagonal discharge cell unlike FIGS. 4 and 5. In other words, the partition wall is composed of six partition wall members extending in six different directions. The partition wall is formed such that one discharge cell is partitioned by partition members extending in one direction with respect to neighboring discharge cells.

Each discharge cell 18R, 18G, 18B is partitioned for all neighboring discharge cells by six partition members connected in a closed loop form.

 In the discharge cell partitioned by the partition wall, a phosphor layer emitting color visible light is formed. The phosphor layer divides the discharge cells into red discharge cells 18R, green discharge cells 18G, and blue discharge cells 18B according to the color of light emitted. The discharge cells 18R, 18G, and 18B in which the phosphor layer is formed are filled with a mixed discharge gas such as neon and xenon.

Then, the X electrode and the Y electrode are arranged in alignment with each of the four partition members of the six partition members constituting one discharge cell, the connection direction of which proceeds in the row direction. That is, the X electrodes are aligned with the extension lines of the first and second partition wall members connected to each other among the four partition walls, and the Y electrode is aligned with the extension lines of the third and fourth partition members connected to each other among the four partition walls. Due to the arrangement.

The X electrode and the Y electrode are formed of a combination of a bus electrode (not shown) and the transparent electrodes 10 and 11. In this case, the transparent electrodes 10 and 11 of the X electrode and the Y electrode are formed to protrude toward the opposite electrode.

As described above, the discharge cells of the closed barrier rib structure have plasma discharge in a limited space partitioned by the barrier ribs, and the drawing area of the phosphor layer is wider than that of the stripe barrier rib structure.

Hereinafter, an area (ie, discharge area) of the sustain electrode and the scan electrode of the discharge cell in the plasma display panel without alignment error will be described with reference to FIG. 7. 7 is a diagram illustrating an area of a sustain electrode and a scan electrode in a plasma display panel with no alignment error.

As shown in FIG. 7, the absence of an alignment error means that the bus electrode of the X electrode and the bus electrode of the Y electrode are formed in accordance with the first partition member arranged in the row direction.

When there is no alignment error, each discharge cell uses both the space A partitioned by the partition member in the row direction and the partition member in the column direction as the discharge space. At this time, the area occupied by the transparent electrode 10 of the X electrode and the transparent electrode 11 of the Y electrode in the discharge space (hereinafter referred to as “first area”) is the area of the transparent electrodes 10 and 11 itself. Hereinafter referred to as "second area". That is, when there is no alignment error, the first area of the Y electrode is the same for each discharge cell.

Accordingly, in the control plasma display panel having no alignment error, scan pulses having the same width are applied to each discharge cell in the address period. At this time, since the first areas of the A electrode and the Y electrode are the same, normal address discharge occurs.

Next, with reference to FIG. 8, the area of the sustain electrode and the scan electrode in the discharge cell in the control type plasma display panel in which the alignment error has occurred will be described. 8 is a diagram illustrating an area of a sustain electrode and a scan electrode in a controlled plasma display panel in which an alignment error occurs.

As shown in FIG. 8, the occurrence of an alignment error means that the bus electrode of the X electrode and the bus electrode of the Y electrode are formed to be offset from the first partition member arranged in the row direction.

When an alignment error occurs, the length of the discharge space of each discharge cell is shortened by the distance of the alignment error (that is, the distance between the partition member and the X electrode (or Y electrode) in the row direction). Each discharge cell uses the space A 'which is smaller than the discharge space A partitioned by the partition wall as the discharge space, and at this time, the transparent electrode 10 of the X electrode and the transparent electrode 11 of the Y electrode are used. One first area becomes the second area, while the other first area is smaller than the second area.

Therefore, when an alignment error occurs, as shown in FIGS. 8 and 9A, the transparent electrode 10 of the X electrode in the first discharge cell has a first area smaller than the second area, and Y In the transparent electrode 11 of the electrode, the first area 11 is equal to the second area. In the second discharge cell adjacent to the first discharge cell in the column direction, the transparent electrode 10 of the X electrode has a first area equal to the second area as shown in FIG. 9B, and the Y electrode. The transparent electrode 11 has a first area smaller than the second area.

That is, when the first area of the Y electrodes of the odd lines is smaller than the second area, the first area of the Y electrodes of the even lines becomes the second area, and the first areas of the Y electrodes of the odd lines and the even lines are different from each other. You lose.

Therefore, the address discharge, which is determined by the voltage difference between the scan pulse applied to the Y electrode and the scan pulse applied to the A electrode, causes low discharge or false discharge to occur in an odd (or even) line having a small first area of the Y electrode. do.

Hereinafter, a method of eliminating address low discharge or false discharge occurring in one of odd lines and even lines will be described with reference to FIGS. 9 and 10.

9 is an electrode structure diagram of two adjacent discharge cells in a plasma display panel in which an alignment error occurs. In FIG. 9, (a) shows a discharge cell structure with odd lines, and (b) shows a discharge cell structure with even lines. Hereinafter, the discharge cells of odd-numbered lines shown in (a) are referred to as type A discharge cells, and the discharge cells of even lines shown in (b) are referred to as type B discharge cells.

In the A type discharge cell, the first area of the Y electrode is normal (that is, the second area), and in the B type discharge cell, the first area of the Y electrode is smaller than the normal (ie, the second area).

Hereinafter, a driving method of the plasma display device according to the first embodiment of the present invention will be described with reference to FIG. 10. FIG. 10 is a driving waveform diagram illustrating a driving method of a plasma display device according to a first exemplary embodiment of the present invention, and illustrates a case of using a progressive scanning method. And the case where the first area of the Y electrode of the discharge cells located in the even lines is small. In addition, only one subfield of the plurality of subfields is shown for convenience of description, and the voltage waveform applied to the X electrode is not shown because it is the same as in the case where there is no alignment error. In addition, since the address pulse applied to the address period is applied corresponding to the Y electrode in the address period, it is not shown.

When an alignment error occurs between the Y electrode and the X electrode in the controlled plasma display panel, the controller 200 eliminates low discharge or false discharge for even lines in the address period, together with the sustain electrode driving control signal and the address driving control signal. A scan electrode drive control signal is outputted.

 Accordingly, the scan electrode driver 400 and the sustain electrode driver 500 output the driving waveform shown in FIG. 10.

As shown in FIG. 10, driving waveforms corresponding to the reset period, the address period, and the sustain period are applied to the plurality of Y electrodes. In the reset period, a reset waveform for initializing all discharge cells or discharge cells discharged in the previous subfield is applied, and in the sustain period, a sustain pulse in which the high level voltage and the low level voltage are alternately applied is applied.

In the address period, scan pulses are applied starting with the first scan line and scan pulses are sequentially applied to the last scan line.

At this time, the width B of the scan pulse applied to the even-numbered scan line among the plurality of scan lines is larger than the width A of the scan pulse applied to the odd-numbered scan line. Specifically, the width A of the scan pulses applied to the odd-numbered scan lines is equal to the width of the scan pulses applied to the Y electrodes of the controlled plasma display panel in the address period when there is no alignment error. On the other hand, the width B of the scan pulse applied to the even-numbered scan line is larger than the width of the scan pulse applied to the Y electrode of the controlled plasma display panel in the address period when there is an alignment error. Here, the width B of the scan pulse applied to the even-numbered scan line is preferably set in direct proportion to the magnitude of the align error.

Therefore, the discharge cells located in the odd-numbered scan lines are normal in response to the scan pulse having the width A applied since the first area of the Y electrode is equal to the second area of the normal size and the area of the A electrode is also normal. Address discharge occurs.

The discharge cells positioned in the even-numbered scan lines have a scan pulse applied by a width B wider than the width A, although the first area of the Y electrode is smaller than the second area having a normal size. Since an address pulse (not shown) having a width B is applied in correspondence to the scan pulse having a width, the low discharge or the false discharge is eliminated by the voltage application time by the width B.

Hereinafter, a driving method of the plasma display device according to the second exemplary embodiment of the present invention will be described with reference to FIG. 11. FIG. 11 is a driving waveform diagram illustrating a driving method of a plasma display device according to a second exemplary embodiment of the present invention, and illustrates an example of using an interlace scanning method. And the case where the first area of the Y electrode of the discharge cells located in the even lines is small. In addition, only one subfield of the plurality of subfields is shown for convenience of description, and the voltage waveform applied to the X electrode is not shown because it is the same as in the case where there is no alignment error. In addition, since the address pulse applied to the address period is applied corresponding to the Y electrode in the address period, it is not shown.

As shown in FIG. 11, the second embodiment of the present invention is the same as the first embodiment except that the scan order of the scan lines is to scan the odd scan lines first and then the even scan lines. That is, in the second embodiment of the present invention, like the first embodiment, the width B of the scan pulses applied to the even-numbered scan lines and the width A of the scan pulses applied to the odd-numbered scan lines Make it bigger.

Therefore, according to the second embodiment of the present invention, the discharge cells located in the odd-numbered scan lines are the same as the second area where the first area of the Y electrode is the normal size and the area of the A electrode is also the normal size. Normal address discharge occurs in response to a scan pulse with

In the discharge cells positioned on the even-numbered scan lines, scan pulses are applied by a width B wider than the width A, although the first area of the Y electrode is smaller than the second area having a normal size. Since an address pulse (not shown) having a width B is applied corresponding to the excitation scan pulse, the low discharge or the erroneous discharge is eliminated by the voltage application time by the width B.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

According to an embodiment of the present invention, the present invention eliminates low discharge or false discharge in an address period occurring in odd-numbered or even-numbered discharge cells due to an alignment error between the X electrode and the Y electrode.

Claims (12)

And a third electrode formed to intersect the plurality of first and second electrodes, the first electrode and the second electrode, and a discharge cell is formed at an intersection point of the first electrode, the second electrode, and the third electrode. In the method of driving a plasma display device having a different electrode structure between discharge cells adjacent to each other in a column direction and having a closed partition structure, In the address period of the subfield, Applying a scan pulse having a first width to an odd numbered first electrode; And Applying a scan pulse having a second width different from the first width to an even-numbered first electrode, And the first width and the second width are determined according to an area of the odd-numbered first electrode and an area of the even-numbered first electrode in the discharge cell. delete delete The method of claim 1, And driving the second width larger than the first width if the area of the odd-numbered first electrode is greater than the area of the even-numbered first electrode. delete The method of claim 4, wherein And the second width is set larger as the area of the even-numbered first electrode in the discharge cell becomes smaller. And a third electrode formed to intersect the plurality of first and second electrodes, the first electrode and the second electrode, and a discharge cell is formed at an intersection point of the first electrode, the second electrode, and the third electrode. A plasma display panel having different electrode structures between adjacent discharge cells in a column direction and having a closed barrier rib structure; Scan pulses are sequentially applied to the plurality of first electrodes, and scan pulses having a first width are applied to odd-numbered first electrodes of the plurality of first electrodes, and have a second width different from the first width. A first electrode driver configured to apply a scan pulse to even-numbered first electrodes of the plurality of first electrodes; And The control unit determines the first width and the second width according to the area of the odd-numbered first electrode and the area of the even-numbered first electrode in the discharge cell. Plasma display device comprising a. delete delete The method of claim 7, wherein And the second width is larger than the first width when the area of the odd-numbered first electrode is greater than the area of the even-numbered first electrode. delete The method of claim 10, And the second width is set larger as the area of the even-numbered first electrode in the discharge cell becomes smaller.

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